Cylinder Head Specifications: Combustion chamber volume: 70cc / 64cc; Intake runner volume: 185cc; Exhaust runner volume: 60cc; Intake valve diameter: 2.02"; Exhaust valve diameter: 1.60"; Valve stem diameter: 11/32"; Valve guides: Manganese bronze; Deck thickness: 9/16"; Valve spring diameter: 1.460"; Valve spring maximum lift: .550"; Rocker stud: 3/8" with guide plate; Guideplate: Hardended steel; Pushrod diameter: 5/16"; Valve angle: 23°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3/4 reach, gasket seat * Use with Hydraulic Flat Tappet Camshafts .550" max lift. (NOT Compatible with Hydraulic Roller Camshafts) Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Requires hardened pushrods. Not legal for sale or use on pollution controlled motor vehicles.
This Part Fits:
Year |
Make |
Model |
Submodel |
1980 |
Avanti |
II |
Base |
1980 |
Buick |
Century |
Base |
1980 |
Buick |
Century |
Estate |
1980 |
Buick |
Century |
Limited |
1991-1993 |
Buick |
Commercial Chassis |
Base |
1980 |
Buick |
Regal |
Base |
1980 |
Buick |
Regal |
Limited |
1992-1993 |
Buick |
Roadmaster |
Base |
1991-1993 |
Buick |
Roadmaster |
Estate Wagon |
1992-1993 |
Buick |
Roadmaster |
Limited |
1980-1982 |
Checker |
Marathon |
Base |
1980-1982 |
Checker |
Marathon |
Deluxe |
1980 |
Chevrolet |
C10 |
Big Ten |
1980-1981 |
Chevrolet |
C10 |
Cheyenne |
1981-1986 |
Chevrolet |
C10 |
Custom |
1980 |
Chevrolet |
C10 |
Custom Deluxe |
1981 |
Chevrolet |
C10 |
Deluxe |
1980-1986 |
Chevrolet |
C10 |
Scottsdale |
1980-1986 |
Chevrolet |
C10 |
Silverado |
1981-1986 |
Chevrolet |
C10 Suburban |
Custom |
1980 |
Chevrolet |
C10 Suburban |
Custom Deluxe |
1981 |
Chevrolet |
C10 Suburban |
Deluxe |
1980,1982,1984-1986 |
Chevrolet |
C10 Suburban |
Scottsdale |
1980,1982-1986 |
Chevrolet |
C10 Suburban |
Silverado |
1980-1981 |
Chevrolet |
C20 |
Cheyenne |
1981-1986 |
Chevrolet |
C20 |
Custom |
1980 |
Chevrolet |
C20 |
Custom Deluxe |
1981 |
Chevrolet |
C20 |
Deluxe |
1980-1986 |
Chevrolet |
C20 |
Scottsdale |
1980-1986 |
Chevrolet |
C20 |
Silverado |
1981-1986 |
Chevrolet |
C20 Suburban |
Custom |
1980 |
Chevrolet |
C20 Suburban |
Custom Deluxe |
1981 |
Chevrolet |
C20 Suburban |
Deluxe |
1980,1982,1984-1986 |
Chevrolet |
C20 Suburban |
Scottsdale |
1980,1982-1986 |
Chevrolet |
C20 Suburban |
Silverado |
1980-1981 |
Chevrolet |
C30 |
Cheyenne |
1981-1986 |
Chevrolet |
C30 |
Custom |
1980 |
Chevrolet |
C30 |
Custom Deluxe |
1981 |
Chevrolet |
C30 |
Deluxe |
1980-1986 |
Chevrolet |
C30 |
Scottsdale |
1980-1986 |
Chevrolet |
C30 |
Silverado |
1980 |
Chevrolet |
Camaro |
Base |
1980-1986 |
Chevrolet |
Camaro |
Berlinetta |
1985-1986 |
Chevrolet |
Camaro |
Iroc-Z |
1980 |
Chevrolet |
Camaro |
Rally Sport |
1981-1986 |
Chevrolet |
Camaro |
Sport |
1980-1986 |
Chevrolet |
Camaro |
Z28 |
1982 |
Chevrolet |
Camaro |
Z28 Indianapolis 500 Pace Car |
1986 |
Chevrolet |
Caprice |
Base |
1980-1986 |
Chevrolet |
Caprice |
Classic |
1986 |
Chevrolet |
Caprice |
Classic Brougham |
1981-1982 |
Chevrolet |
Caprice |
Classic Estate |
1980-1981 |
Chevrolet |
Caprice |
Classic Landau |
1980 |
Chevrolet |
Caprice |
Classic Sport |
1980-1982,1984-1986 |
Chevrolet |
Corvette |
Base |
1982 |
Chevrolet |
Corvette |
Collector's Edition |
1986 |
Chevrolet |
Corvette |
Indianapolis 500 Pace Car |
1980-1986 |
Chevrolet |
El Camino |
Base |
1981-1986 |
Chevrolet |
El Camino |
Conquista |
1980-1981 |
Chevrolet |
El Camino |
Royal Knight |
1980-1986 |
Chevrolet |
El Camino |
SS |
1983 |
Chevrolet |
G10 |
Base |
1980-1986 |
Chevrolet |
G10 |
Beauville |
1981-1984,1986 |
Chevrolet |
G10 |
Bonaventure |
1980-1986 |
Chevrolet |
G10 |
Chevy Van |
1980-1986 |
Chevrolet |
G10 |
Sportvan |
1980-1986 |
Chevrolet |
G20 |
Beauville |
1983-1984 |
Chevrolet |
G20 |
Bonaventure |
1980-1986 |
Chevrolet |
G20 |
Chevy Van |
1980-1981 |
Chevrolet |
G20 |
Nomad |
1980-1986 |
Chevrolet |
G20 |
Sportvan |
1980-1986 |
Chevrolet |
G30 |
Beauville |
1983-1984 |
Chevrolet |
G30 |
Bonaventure |
1980-1986 |
Chevrolet |
G30 |
Chevy Van |
1980-1986 |
Chevrolet |
G30 |
Hi-Cube |
1980-1986 |
Chevrolet |
G30 |
Sportvan |
1980-1985 |
Chevrolet |
Impala |
Base |
1981-1982 |
Chevrolet |
Impala |
Estate |
1980 |
Chevrolet |
Impala |
Sport |
1980-1981 |
Chevrolet |
K10 |
Cheyenne |
1981-1986 |
Chevrolet |
K10 |
Custom |
1980 |
Chevrolet |
K10 |
Custom Deluxe |
1981 |
Chevrolet |
K10 |
Deluxe |
1980-1986 |
Chevrolet |
K10 |
Scottsdale |
1980-1986 |
Chevrolet |
K10 |
Silverado |
1981-1986 |
Chevrolet |
K10 Suburban |
Custom |
1980 |
Chevrolet |
K10 Suburban |
Custom Deluxe |
1981 |
Chevrolet |
K10 Suburban |
Deluxe |
1980,1982,1984-1986 |
Chevrolet |
K10 Suburban |
Scottsdale |
1980,1982-1983,1985-1986 |
Chevrolet |
K10 Suburban |
Silverado |
1980-1981 |
Chevrolet |
K20 |
Cheyenne |
1981-1986 |
Chevrolet |
K20 |
Custom |
1980 |
Chevrolet |
K20 |
Custom Deluxe |
1981 |
Chevrolet |
K20 |
Deluxe |
1980-1986 |
Chevrolet |
K20 |
Scottsdale |
1980-1983,1985-1986 |
Chevrolet |
K20 |
Silverado |
1981-1986 |
Chevrolet |
K20 Suburban |
Custom |
1980 |
Chevrolet |
K20 Suburban |
Custom Deluxe |
1981 |
Chevrolet |
K20 Suburban |
Deluxe |
1980,1982,1984-1986 |
Chevrolet |
K20 Suburban |
Scottsdale |
1980,1982-1983,1985-1986 |
Chevrolet |
K20 Suburban |
Silverado |
1980-1981 |
Chevrolet |
K30 |
Cheyenne |
1981-1986 |
Chevrolet |
K30 |
Custom |
1980 |
Chevrolet |
K30 |
Custom Deluxe |
1981 |
Chevrolet |
K30 |
Deluxe |
1980-1986 |
Chevrolet |
K30 |
Scottsdale |
1980-1986 |
Chevrolet |
K30 |
Silverado |
1980 |
Chevrolet |
K5 Blazer |
Cheyenne |
1981-1986 |
Chevrolet |
K5 Blazer |
Custom |
1980 |
Chevrolet |
K5 Blazer |
Custom Deluxe |
1981 |
Chevrolet |
K5 Blazer |
Deluxe |
1984 |
Chevrolet |
K5 Blazer |
Scottsdale |
1980-1986 |
Chevrolet |
K5 Blazer |
Silverado |
1980-1981 |
Chevrolet |
Malibu |
Base |
1980-1983 |
Chevrolet |
Malibu |
Classic |
1980 |
Chevrolet |
Malibu |
Classic Estate |
1980-1981 |
Chevrolet |
Malibu |
Classic Landau |
1980 |
Chevrolet |
Malibu |
Classic Sport |
1980 |
Chevrolet |
Malibu |
Estate |
1980 |
Chevrolet |
Malibu |
Sport |
1981-1986 |
Chevrolet |
Monte Carlo |
Base |
1983 |
Chevrolet |
Monte Carlo |
CL |
1980-1981 |
Chevrolet |
Monte Carlo |
Landau |
1986 |
Chevrolet |
Monte Carlo |
LS |
1980 |
Chevrolet |
Monte Carlo |
Sport |
1983-1986 |
Chevrolet |
Monte Carlo |
SS |
1986-1989 |
Excalibur |
Phaeton |
Base |
1980-1986 |
GMC |
C1500 |
Base |
1980 |
GMC |
C1500 |
Heavy Half |
1980-1986 |
GMC |
C1500 |
High Sierra |
1980-1986 |
GMC |
C1500 |
Sierra Classic |
1980-1982 |
GMC |
C1500 |
Sierra Grande |
1980-1982 |
GMC |
C1500 |
Street Coupe |
1980-1986 |
GMC |
C1500 Suburban |
Base |
1980-1986 |
GMC |
C1500 Suburban |
High Sierra |
1980-1986 |
GMC |
C1500 Suburban |
Sierra Classic |
1980-1982 |
GMC |
C1500 Suburban |
Sierra Grande |
1980-1986 |
GMC |
C2500 |
Base |
1980-1986 |
GMC |
C2500 |
High Sierra |
1980-1986 |
GMC |
C2500 |
Sierra Classic |
1980-1982 |
GMC |
C2500 |
Sierra Grande |
1980-1986 |
GMC |
C2500 Suburban |
Base |
1980-1986 |
GMC |
C2500 Suburban |
High Sierra |
1980-1986 |
GMC |
C2500 Suburban |
Sierra Classic |
1980-1982 |
GMC |
C2500 Suburban |
Sierra Grande |
1980-1986 |
GMC |
C3500 |
Base |
1980-1986 |
GMC |
C3500 |
High Sierra |
1980-1986 |
GMC |
C3500 |
Sierra Classic |
1980-1982 |
GMC |
C3500 |
Sierra Grande |
1981-1986 |
GMC |
Caballero |
Amarillo |
1980-1986 |
GMC |
Caballero |
Base |
1981 |
GMC |
Caballero |
Conquista |
1980-1986 |
GMC |
Caballero |
Diablo |
1980 |
GMC |
Caballero |
Laredo |
1981 |
GMC |
Caballero |
Royal Knight |
1980-1986 |
GMC |
G1500 |
Rally |
1983-1984 |
GMC |
G1500 |
Rally Custom |
1980-1986 |
GMC |
G1500 |
Rally STX |
1980-1986 |
GMC |
G1500 |
Vandura |
1980-1986 |
GMC |
G2500 |
Rally |
1983-1984 |
GMC |
G2500 |
Rally Custom |
1980-1986 |
GMC |
G2500 |
Rally STX |
1980-1986 |
GMC |
G2500 |
Vandura |
1980-1986,1988 |
GMC |
G3500 |
Magnavan |
1980-1986 |
GMC |
G3500 |
Rally |
1980-1986 |
GMC |
G3500 |
Rally Camper Special |
1981-1988 |
GMC |
G3500 |
Rally Custom |
1980-1986 |
GMC |
G3500 |
Rally STX |
1980-1986 |
GMC |
G3500 |
Vandura |
1980-1986 |
GMC |
G3500 |
Vandura Special |
1980-1986 |
GMC |
Jimmy |
Base |
1980-1985 |
GMC |
Jimmy |
High Sierra |
1980-1986 |
GMC |
Jimmy |
Sierra Classic |
1980-1982 |
GMC |
Jimmy |
Sierra Grande |
1980-1982 |
GMC |
Jimmy |
Street Coupe |
1980-1986 |
GMC |
K1500 |
Base |
1980-1986 |
GMC |
K1500 |
High Sierra |
1980-1986 |
GMC |
K1500 |
Sierra Classic |
1980-1982 |
GMC |
K1500 |
Sierra Grande |
1980-1986 |
GMC |
K1500 Suburban |
Base |
1980-1986 |
GMC |
K1500 Suburban |
High Sierra |
1980-1986 |
GMC |
K1500 Suburban |
Sierra Classic |
1980-1982 |
GMC |
K1500 Suburban |
Sierra Grande |
1980-1986 |
GMC |
K2500 |
Base |
1980-1986 |
GMC |
K2500 |
High Sierra |
1980-1986 |
GMC |
K2500 |
Sierra Classic |
1980-1982 |
GMC |
K2500 |
Sierra Grande |
1980-1986 |
GMC |
K2500 Suburban |
Base |
1980-1986 |
GMC |
K2500 Suburban |
High Sierra |
1980-1986 |
GMC |
K2500 Suburban |
Sierra Classic |
1980-1982 |
GMC |
K2500 Suburban |
Sierra Grande |
1980-1986 |
GMC |
K3500 |
Base |
1980-1986 |
GMC |
K3500 |
High Sierra |
1980-1986 |
GMC |
K3500 |
Sierra Classic |
1980-1982 |
GMC |
K3500 |
Sierra Grande |
1980 |
Oldsmobile |
Cutlass |
Base |
1980 |
Oldsmobile |
Cutlass |
Brougham |
1980 |
Oldsmobile |
Cutlass |
LS |
1980 |
Oldsmobile |
Cutlass Calais |
Base |
1980,1982 |
Oldsmobile |
Cutlass Cruiser |
Base |